Herbicidal mixtures comprising l-glufosinate or its salt and at least one protoporphyrinogen-ix oxidase inhibitor

Abstract

The present invention relates to herbicidal mixture comprising L-glufosinate or its salt and at least one protoporphyrinogen-IX oxidase inhibitor. The invention furthermore relates to a method for controlling undesirable vegetation in burndown programs, in industrial vegetation management and forestry, in vegetable and perennial crops and in turf and lawn.

1 .- 15 . (canceled) 
     
     
         16 . A herbicidal mixture comprising
 a) L-glufosinate and its salts as compound I; and   b) flumioxazin as compound Il;   wherein L-glufosinate comprises more than 70% by weight of the L-enantiomer.   
     
     
         17 . The herbicidal mixture of  claim 16 , wherein compound I is selected from the group consisting of L-glufosinate-ammonium, L-glufosinate-sodium as L-glufosinate salts, and L-glufosinate as free acid. 
     
     
         18 . The herbicidal mixture of  claim 16 , wherein compound I is L-glufosinate-ammonium. 
     
     
         19 . The herbicidal mixture of  claim 16 , wherein L-glufosinate comprises more than 80% by weight of the L-enantiomer. 
     
     
         20 . The herbicidal mixture of  claim 16 , wherein L-glufosinate comprises more than 90% by weight of the L-enantiomer. 
     
     
         21 . The herbicidal mixture of  claim 16 , wherein L-glufosinate comprises 95% by weight of the L-enantiomer. 
     
     
         22 . The herbicidal mixture of  claim 16 , wherein the weight ratio of compound I to compound Il is from 1000:1 to 1:500. 
     
     
         23 . The herbicidal mixture of  claim 16 , wherein the weight ratio of compound I to compound Il is from 50:1 to 1:5. 
     
     
         24 . A pesticidal composition, comprising a liquid or solid carrier and the herbicidal mixture of  claim 16 . 
     
     
         25 . A method for controlling undesirable vegetation comprising applying the herbicidal mixture of  claim 16  to a locus where undesirable vegetation is present or is expected to be present. 
     
     
         26 . The method as claimed in  claim 25 , comprising application of the herbicidal mixture of  claim 16  prior to emergence of the crop. 
     
     
         27 . The method as claimed in  claim 25 , comprising application of the herbicidal mixture of  claim 16  prior to planting the crop. 
     
     
         28 . The method of  claim 25 , wherein the crop is selected from rice, maize, pulse crops, cotton, canola, small grain cereals, soybeans, peanut, sugarcane, sunflower, plantation crops, tree crops, nuts and grapes. 
     
     
         29 . The method of  claim 25 , wherein the crop is selected from glufosinate tolerant crops. 
     
     
         30 . The method of  claim 25 , wherein compound I and II of the herbicidal mixture of  claim 16  are applied simultaneously, that is jointly or separately, or in succession.